Speaker



FIG. 1 is a front, top, left side perspective view of a speaker, according to an embodiment of the present invention;

FIG. 2 is a rear, bottom, right side perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a left side view thereof;

FIG. 7 is a top view thereof;

FIG. 8 is a bottom view thereof; and,

FIG. 9 is a front, top, left side perspective view thereof in an environment of use.

The environment of use depicted in FIG. 9 forms no part of the claimed invention. 

CLAIM The ornamental design for a speaker, as shown and described. 